[Value of bone scintigraphy].

Artificial radioactivity enables visualisation of the principal organs in the form is scintiscans, introduces a new order of sensitivity in quantitative hormonal analysis, thanks to radio-immunology, and remains unrivalled in compartmental analyses of the various metabolism of the diagnosis of local skeletal conditions is reviewed, and the indications for this quantitative examination are described for the diagnosis of numerous bony metabolic diseases. Finally, mono- and bi- photonic absorptiometries, the latest developments in isotopic techniques, are introduced. They are likely to provide numerical data on the state of mineralisation of bony tissue. The use of these nuclear techniques for the diagnosis and surveillance of osteoporosis is detailed.